Philadelphia's Popped! Music Festival has laid out its 2011 lineup, and it includes acts like the semi-reunited Shins, Panda Bear, Rakim, Pretty Lights, Cults, Foster The People, The Hold Steady and more. Check out the current 2011 Popped! Music Festival below. The lineup is due for more additions over time, so until then, let the rumors fly.

The Popped! Music Festival is set to happen in Philadelphia's FDR Park on Sept. 23-24.

A limited number of early bird 2-day passes are available now for $90, and limited early bird 2-day VIP passes are available for $175. The early-bird tickets are available through Thursday, June 23rd at 10pm. VIP passes include special viewing areas, separate entrances (away from the foul *commoners*) and special VIP food offerings.